Add 28/18 and 90/72
1st number: 1 10/18, 2nd number: 1 18/72
28/18 + 90/72 is 101/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
28/18 = 28 × 4/18 × 4 = 112/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
90/72 = 90 × 1/72 × 1 = 90/72 - Add the two like fractions:
112/72 + 90/72 = 112 + 90/72 = 202/72 - 202/72 simplified gives 101/36
- So, 28/18 + 90/72 = 101/36
In mixed form: 229/36
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